//This example uses the RangeSorting event.
activeSheet.setValue(0, 0, 10);
activeSheet.setValue(1, 0, 100);
activeSheet.setValue(2, 0, 50);
activeSheet.setValue(3, 0, 40);
activeSheet.setValue(4, 0, 80);
activeSheet.setValue(5, 0, 1);
activeSheet.setValue(6, 0, 65);
activeSheet.setValue(7, 0, 20);
activeSheet.setValue(8, 0, 30);
activeSheet.setValue(9, 0, 35);
var cellrange =new GC.Spread.Sheets.Range(0, 0, 5, 1);
var hideRowFilter =new GC.Spread.Sheets.Filter.HideRowFilter(cellrange);
activeSheet.rowFilter(hideRowFilter);
activeSheet.bind(GC.Spread.Sheets.Events.RangeSorting, function (e, info) {
        alert("Col (" + info.col + ", " + info.ascending +")");
});